Sash-lock.



(No Model.)

OZ" j NVENTOH /ff N UNITED vSTATES PATENT OEETCE. v

CONRAD FREDRIOK STEIN, OF BAYONNE, NEl/V JERSEY, ASSIGNOR OF ONE- HALF TO GEORGE BIOKELHAUPT, OF NEW YORK, N. Y.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 648,808, dated May 1, 1900.

Applicantfinaretrunye.1900. se1-a1N0.4,657. (Nomad.)

To @ZZ whom, it may concern,.-

Be it known that I, CONRAD FEEDRICK STEIN, a citizen of the United States, and a resident of Bayonne, in the county of Hudson and State of NewJersey, have invented a new and Improved Sash-Lock, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved sash-lock which is simple Io and durable in construction, cheap to manufacture, not liable to get out of order, readily applied, and arranged to lock the upper and lower sashes together and to lock the lower sash to the Window-casing to prevent open- [5 ing of the Window from the outside by unauthorized persons trying to force thescrews used for securing the lock to the lower sash.

The invention consists of novel features and parts and combinations of the same, as

2o will be fully described hereinafter and then pointed out in the claims. Y

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a sectional perspective view of part of a Window-casing and sashes with the improvement applied. Fig. 2 is a sectional 3o plan view of the same with the top covering of the lock removed. Fig. 3 is a sectional side elevation of the improvement on the line 3 3 in Fig. 2. ,of the same on the line 4 4 in Fig. 2. Fig. 5

is a perspective'view of the top cover for the casing, and Fig. 6 is a plan view of the improvement With the top cover removed and the parts in an unlocked position.

The improved sash-lock is mounted in a 4o suitably-constructed casing A, having a cover A' and adapted to be fastened by screws or other means to the top cross-bar of the lower sash B adjacent to the side of the Windowframe O and next to the corresponding stile of the upper sash D1, as is plainly indicated in Figs. l and 2.

In the side of the window-casing O are arranged a series of apertures E, and corresponding apertures E are formed in the stile 5o of the upper sash D, and said apertures are adapted to be engaged by bolts F F', respec- Fig. 4 is a transverse sectionA tively, standing at a right angle to each other and mounted to slide in the casing A, the ends of said bolts projecting through the walls of the casing to engage said apertures when the bolts are shot out, as hereinafter more fully described, to simultaneously engage both the casing and the upper sash. The bolts F F' are normally held in an innermost position bythe action of coil-springs 6o G G', respectively, (see Fig. 6,) so that the outer ends of the bolts are disengaged from the Window-casing and the upper sash to allow of moving the sash D to open or close the window in the manu'er described. 65

On the bolt F inside of the casing A is arranged a lug F2, (see Figs. 2 and 6,) adapted to be engaged by a projection H on the inner end -of a lever H, fulcrumed at H2 in the casing A and having a inger-pieceH3 pro- 7o jecting through the front of the casing A, so as to permit of being taken hold of by the operator for manipulating therlock, as hereinafter more fully setfforth.

The inner end of the lever H has a curved or cam face H4, adapted to engage the inner end of the bolt F', so as to push .the same in a transverse direction againstthe tension of its spring G to shoot the bolt F into an outermost position at the time the bolt F is moved 8o sidewise bythe action of the arm H on the lug F2. The extreme end H5 ot' the lever H is adapted to engage a notch F3 in the inner end of the bolt F', so that when the latter has been forced outward by the cam-face'H4 then 85 the end H5 finally drops into the notch F3 and thereby locks the bolt F against return movement, as will be readily understood by reference to Fig. 2. As the bolt F engages the lever H when the two stand in alinement with 9o each other, as shown in Fig. 2, it is evident that the other bolt F is held in an outermost locked position by the arm H', and consequently both bolts are held in this position at thevtime they engage corresponding aper tures E E' in the Window-casing .O and upper sash D to lock the sashes together and the lower sash B to the Window-*casing O.

The inner portion of the bolt F is mounted to slide in transverse guideways I, and on 10o said inner portion is arranged a finger-piece J, extending to the left through the left-hand side of the casing A to be within convenient reach of the operator to allow the latter to press the finger-piece J in a transverse direction and move the bolt F still farther outward va short distance to release the end H5 of the lever H from the recessk F3 in the bolt F', so that the-'spring G of the bolt F can force the latter inward to its former innermost position, thereby returning the lever H to the position shown in Fig. G. Now when the operator releases the pressure on the tinger-piece J the spring G' returns the bolt F back to an innermost position, so that both bolts F F' 'are out of engagement with the apertures E E, and consequently the sashes are unlocked.

. From the foregoing it will be seen that when the several parts are in an unlocked position, as illustrated in Fig. 6, and it is desired to lock the sashes the operator simply pushes the finger-piece H3 from right to left, so as to simultaneously move the two bolts F F into an outermost position and in engagement with the corresponding apertures E E', and

at the same time the end H5 otV the lever H engages the notch F3 in the bolt F', so as to hold thebolts and the lever from return movement. When it is desired to unlock the sashes, the operator presses the finger-piece J in a transverse direction to release the lever H, as described, and allow the spring G to return the bolt F and allow the spring G' to return the bolt F as soon as the operator releases the pressure on the linger-piece J.

The casing A and its cover are formed with a cut-out portion A2 for the convenient passage of the counterbalancing cord or rope K, as illustrated in Figs. l, 2, and 5.

Having thus fully described my invention,

I claim as newand (if u bylietters Patenti w l. A sash -lock, comprising two movable bolts standing at au angle to each other, an operating-lever for engaging both bolts and sliding the same into an outer locking position, the said lever being also arranged to positively lock the bolts against return movement, and a linger-piece on one of the bolts, to move the latter out of locking engagement with the lever and release the latter and the other bolt, as set forth.

' 2. A sash-lock, comprising two bolts movable at an angle to each other, an operatinglever for engaging with and moving both bolts outward to locking position, alocking device for holding the bolts in a looking position, and another lever for releasing said lockingdevice, substantially as specified.

3. Asash-lock, comprisinga casing, springpressed bolts mounted to slide in said casing at an angle to each other, one of the bolts having a linger-piece and the other having a shoulder, and a lever having its inner end formed with a cam-face for engagement with the inner end of the bolt having the fingerpiece, said lever also having its inner end provided with an arm engaging the shoulder on the other bolt, and the extreme end of said lever being adapted to engage a notchin the bolt having the finger-piece, substantially as shown and described.t

In testimony whereof I have signed my name to this specification in the presence ot' two subscribing witnesses.

CONRAD FREDRICK STEIN.

Vitnesses.:

GHAs. HAAG, GEORGE BICKELHAUPT, Jr. 

